only idn_free() if built with libidn

delete trailing whitespace

Simon Josefsson added a idn_free() function in libidn 0.4.5 as a reaction to
Gisle's previous mail. We now use this function, and thus we require libidn
0.4.5 or later. No earler version wi

Simon Josefsson added a idn_free() function in libidn 0.4.5 as a reaction to
Gisle's previous mail. We now use this function, and thus we require libidn
0.4.5 or later. No earler version will do.

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Robert D. Young reported that CURLOPT_COOKIEFILE and CURLOPT_COOKIE could
not be used both in one request. Fixed it and added test case 172 to verify.

While talking to host a.b.c, libcurl did wrongly not accept cookies that were
set to the domain .a.b.c (that is with a dot prefix). This is now fixed and
test case 171 verifies it.

quickfix to avoid division by zero, possibly we should go over all of these
once and for all

fixed transfer speed math

calculate upload and download speed using doubles to keep precision.
deleted trailing whitespace

NTLM requires SSL

cert verify

added test 170

David Byron's test case with -F that used to crash

killed trailing whitespace

just code formatting and killed whitespace

language!

Set CURLOPT_USERAGENT too

The kill trailing whitespace needs to be set better as this way it takes
effect globally which isn't nice. Commented it out for now. Display trailing
whitespace still, to remind me.

simplified all die messages

simplified the automake failed message too

make this script tell that this is the obsolete version, to make it possible
to detect

simplified the die-line when aclocal fails, the previous one confused
the netbsd shell

+ when storing the address in the cache fails, cleanup the resolved address
properly
+ delete trailing whitespace

* seed_enough() was converted to a macro to avoid the IRIX compiler warning
about that passed-in argument not being used.
* killed trailing whitespace

if shrinking the buffer fails, use the older larger one

Peter Sylvester's patch that addresses two flaws in the peer certificate name
verification:

- when multiple common names are used (as in the curl tests), the last name
needs to be se

Peter Sylvester's patch that addresses two flaws in the peer certificate name
verification:

- when multiple common names are used (as in the curl tests), the last name
needs to be selected.

- allow comparing with encoded values, at least with BMP and ISO latin1
encoded T61strings.

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